Yep, zero self control. No matter how big the bar/bag/packet is, sometimes I would eat it all without even actually taking a moment to realise that it wasn't enjoyable anymore and making me feel sick lol.

I tried to stop it but I've found just not buying that stuff and not having it available have worked best

Can relate to both of these. I tend to eat when I'm bored, and when you're disabled and largely housebound, that's often. I really struggle to come up with ways to occupy myself (that don't cost any money or take up space) other than the usual chores, and I would find myself eating because, well, it was something to do.

And Cheez-Its are not allowed within 500 feet of my house. I don't know what the hell is in them, but if I eat one, I'll demolish the whole box.

I've had this with roommates. But at the end of the day, you gotta call out the people who do that. Even just a quick conversation with them. A lot of people may not understand that when someone is on a budget, those slices of pizza go a long way.